Take off the hoses!
Hyundai 2005 Elantra automatic transmissino drain plug located on the bottom of transmissino housing..
Some are hard to get at and are plastic which can break easily so I just remove the lower hose end to drain rad; its easier and faster.
Where is my drain ncock for my 2004 Hyundai Accent?
I checked my owner's manual - it listed radiator capacity at 6L.
Atoz radiator doesn't have a drain plug. The only way to drain the coolant by removing its bottom radiator hose
Front of the radiator, just under the opening of the air intake.
It's the power steering oil cooler.
25-30 lb-ft
Drain plug or petcock at bottom or rear of radiator or Remove lower radiator hose
It could be the radiator is clogged. The thermostat could be bad (prevents the coolant from circulating from radiator to engine block)
I would recomend getting the Haynes manual
the drain plug should be located under the radiator a plastic screw plug